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Home >> Mazda >> 2005 >> B4000 SE, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 16 (Engine Mechanical) >> Adjustments >> Valve Clearance Adjustment

Valve Clearance Adjustment

WARNING: This page is about a different car, the 2002 Mazda B3000 and 2001 Mazda B3000. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: Hydraulic valve lifters are used. No valve adjustment is required. When valve and/or valve seat is machined, valve clearance is reduced and may cause improper valve operation. Collapse valve lifter to check clearance.
  1. Position piston No. 1 at TDC of compression stroke. Slowly apply pressure until valve lifter is completely collapsed on intake valve No. 1.
  2. Measure clearance between rocker arm and tip of valve stem while holding lifter in collapsed position. If clearance is not within specification, replace valve, grind valve stem or replace other components as necessary. See COLLAPSED VALVE LIFTER SPECIFICATIONS  table.
    COLLAPSED VALVE LIFTER SPECIFICATIONS

    Application In. (mm)
    All Valves .088-.189 (2.23-4.77)
  3. Repeat procedure for exhaust valve No. 1, exhaust valve No. 3, intake valve No. 2, exhaust valve No. 6, and intake valve No. 4. Rotate crankshaft 360 degrees (one revolution). Repeat procedure for intake valve No. 3, exhaust valve No. 2, intake valve No. 5, exhaust valve No. 4, intake valve No. 6, and exhaust valve No. 5.
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